Finding the Third Proportional to 2,609,864 and 3,992,799

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,864 : 3,992,799 = 3,992,799 : x
2. Step 2: Convert to fraction form
   2,609,864/3,992,799 = 3,992,799/x
3. Step 3: Cross multiply
   2,609,864x = 3,992,799 × 3,992,799
4. Step 4: Simplify right side
   2,609,864x = 15,942,443,854,401
5. Step 5: Solve for x
   x = 15,942,443,854,401/2,609,864
6. Step 6: Final answer
   x = 6,108,534.34